80% Ar Build Trigger Issue

[Elitewill1200]

Hey guys, I just completed my 80% lower Ar15 build and I absolutely love it. The only problem is it had started firing on the release of the trigger too. I am rocking the PSA MOE lower build kit, and have failed to replicate without live ammo, even through full function check. Once I get home imma make 100% sure my receiver is in spec. Could it just be the FCG? I know the springs aren't backwards

 

[STXdevilsquid]

Did you get this figured out? Pics would help.


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[ROGER4314]

Double tap. Sorry.

Flash

 

[ROGER4314]

I was at the local gun shop when a local man brought in an 80% lower that he had drilled slightly crooked. The trigger would not release the hammer. We kicked it around for a while and settled on a self contained Timney Trigger unit. He bought the Timney and never looked back.

Flash

 

[Elitewill1200]

I did a function check a bunch and eventually it started failing. I've looked into getting a self contained trigger (I got $200 to blow from a competition) and I'm still balancing between that and new lower. I'm still not exactly sure if the lower or the trigger is bad, as the lower measured in spec

 

[Elitewill1200]

Update, I think I'm gonna go with the flat 3.5 CMC Trigger as it's affordable and gets the job done. I figured if the lower is the issue the trigger would help if self contained

 

[Elitewill1200]

I was right it works pretty darn well I'd say, massive difference between a $150 trigger and a $15 trigger

 

[Renegade]

I am gonna guess your disconnector is not working.

 

[Elitewill1200]

I put the old FCG in my buddies Ar and it worked perfectly. I think I drilled the holes in my lower a little too wide, and the trigger was rotating and letting go of the hammer once I released the trigger